/Engine/Source/Runtime/GeometryCore/Public/FrameTypes.h
Compute intersection of ray with plane defined by frame origin and axis as normal
true if ray intersects plane and HitPointOut is valid
bool RayPlaneIntersection ( const [TVector](API\Runtime\Core\Math\TVector)< RealType > & RayOrigin, const [TVector](API\Runtime\Core\Math\TVector)< RealType > & RayDirection, int PlaneNormalAxis, [UE::Math::TVector](API\Runtime\Core\Math\TVector)< RealType > & HitPointOut ) const